Radian and Degree measure

hi guys this is John Luis A. Dalog and im doing a blog on degree and radian measure from monday's lesson

*π is equivalent to 180°* 

To convert the degree to radians, multiply the degree to π/180° 

examples:  
convert 30° to radian
=30°x π/180
=divide: 180/30 = π/6

convert 45° to radian

=45°x π/180°
=divide 180/45= π/4° 

• Convert 270° to radians.
Since 180° equates to π, then:

The equivalent angle is  



to convert radian to degree, use 

180°/
π 

examples:

convert 5π/6 to degrees
= 180/6=30
= 30x5=150°


Convert    radians to degrees.

The equivalent angle is 30°

Example 1:

Convert 60° to radian measure.

Example 2:

Convert 150° to radian measure.

	Exact radians	Approximate radians
30°		0.52
45°		0.785
60°		1.048
90°		1.57
180°		3.142
270°		4.71
360°		6.28

http://www.mathopenref.com/radians.html
http://www.themathpage.com/atrig/radian-measure.htm
http://www.algebralab.org/lessons/lesson.aspx?file=trigonometry_trigdegradian.xml
http://hotmath.com/hotmath_help/topics/degree-to-radian-measure.html

there is lots of Example